Serial Communication Format

Be sure to connect an external pull-high resistor to this pin (1k

W to 10kW).

Note: When data is read, a wait time

Note: Command 1: sets display mode

Command 2: sets data

Command 3: sets address

Data 1 to n: transfers display data (36 bytes max.)

Command 4: controls display

Note: Command 1: sets data

Command 2: sets address

Data: display data

HT16515

Rev. 1.00

9

December 19, 2003

b 0

D I

C S

C L K

1

2

b 2

b 3

b 4

b 5

b 6

b 7

b 1

3

4

5

6

7

8

1

2

3

4

5

6

D O

b 0

b 1

b 2

b 3

b 4

b 5

D a t a i s r e a d

A d a t a r e a d c o m m a n d i s s e t

C S

C L K

D I

C o m m a n d 1

C o m m a n d 2

C o m m a n d 3

D a t a 1

D a t a n

C o m m a n d 4

b 0

b 1

b 2

b 6

b 7

D I

C L K

1

2

3

7

8

C S

C S

C L K

D I

C o m m a n d 1

C o m m a n d 2

D a t a

C o m m a n d 2

D a t a n